Possible BGP hijack

Beginning at 2019-04-21 07:28:44 UTC, we detected a possible BGP hijack.

Prefix, is normally announced by AS21880 ZENDESK-NETWORK-ASN - Zendesk, Inc., US.

But beginning at 2019-04-21 07:28:44, the same prefix ( was also announced by ASN 137079.

This was detected by 18 BGPMon peers.

Start time: 2019-04-21 07:28:44 UTC
Expected prefix:
Expected ASN: 21880 (ZENDESK-NETWORK-ASN - Zendesk, Inc., US)
Event Details
Detected advertisement:
Detected Origin ASN 137079 (MISP-AS-AP Melbourne Internet Service Provider, AU)
Detected AS Path 27398 6939 137079
Detected by number of BGPMon peers: 18

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